MIC49150YMM-TR: Advanced 1.5A Adjustable Linear Voltage Regulator IC by Microchip Technology

The MIC49150YMM-TR represents Microchip Technology's commitment to high-performance power management solutions. This premium-grade linear voltage regulator IC delivers exceptional efficiency with its ultra-low dropout voltage and precise adjustable output, making it a top choice for engineers designing mission-critical power systems.

In-Depth Technical Specifications

Core Electrical Characteristics

• Input Voltage Range: 2.5V to 6.5V (absolute max 7V)
• Output Voltage Range: Adjustable from 0.9V to 5V with 1% accuracy
• Output Current: 1.5A continuous (2A peak capability)
• Dropout Voltage: Just 300mV typical at 1.5A load
• Line Regulation: 0.02%/V (typical)
• Load Regulation: 0.04%/A (typical)
• Quiescent Current: 85 A typical (120 A max)

Advanced Protection Features

The MIC49150YMM-TR incorporates multiple protection mechanisms:

1. Thermal Shutdown: Automatic cutoff at 150 C (typ) with hysteresis
2. Current Limiting: Fold-back protection against short circuits
3. Reverse Current Protection: Prevents damage from output-to-input backflow

Package Details and Thermal Performance

The 8-pin MSOP package (3mm 3mm) features:

• Exposed thermal pad for enhanced heat dissipation
• _JA of 50 C/W (with proper PCB copper area)
• Maximum junction temperature of 125 C

Application-Specific Design Considerations

For Portable Electronics

When designing for battery-powered devices:

• Utilize the enable pin for power sequencing
• Configure output voltage for lowest acceptable level to maximize battery life
• Implement bypass capacitors per datasheet recommendations

Industrial Applications

For harsh environment implementations:

• Add input TVS diodes for surge protection
• Consider derating current at high ambient temperatures
• Use thermal vias under the exposed pad

Competitive Advantages

The MIC49150YMM-TR outperforms comparable regulators by:

1. Delivering 20% lower dropout voltage than industry average
2. Offering 50% better line regulation
3. Providing wider temperature range operation (-40 C to +125 C)
4. Including more comprehensive protection features

Design Resources and Support

Microchip provides extensive support materials:

• SPICE models for simulation
• Evaluation board (part # MIC49150-EV)
• Application notes on PCB layout and thermal management
• Reference designs for common applications

Purchasing Information

The MIC49150YMM-TR is available:

• In tape-and-reel packaging (3000 units per reel)
• With standard lead times of 8-12 weeks
• Through authorized distributors worldwide

For volume pricing and samples, visit Microchip's official website or contact your local sales representative.